baber/WOPTO huggingface dataset:
Patent NO-178226-C (NO)
Inventor: LOGIN ROBERT B
IPC: C09K23/32
Filed: 1993-08-13
Abstract: N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having formula (A), wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8 to 20 carbon atoms, most preferably 8 to 14 carbon atoms; which lactams are capable of forming micelles in aqueous solutions irrespective of pH and have critical micelle concentrations of between about 1 x 10<-3> and about 1 x 10<-5> moles per liter. The invention also relates to the uses of the N-hydrocarbon substituted lactams which involve surfactant properties, such as solubility, wetting, viscosity building, emulsifying, foam boosting and/or complexing properties.
Patent AU-706761-C (AU)
Title: Methods for modulating T cell responses by manipulating intracellular signal transduction
Inventor: JUNE CARL H
IPC: A61K31/365
Filed: 1995-05-01
Granted: 2004-02-19
Abstract: Methods for modulating T cell responses by manipulating intracellular signals associated with T cell costimulation are disclosed. The methods involve inhibiting or stimulating the production of at least one D3-phosphoinositide in a T cell. Production of D3-phosphoinositides can be manipulated by contacting a T cell with an inhibitor or activator of phosphatidylinositol 3-kinase. Inhibitors of phosphatidylinositol 3-kinase for use in the methods of the invention include wortmannin and quercetin, or derivatives or analogues thereof. The methods of the invention can further comprise modulating other intracellular signals associated with costimulation, such as protein tyrosine phosphorylation, for example by modulating the activity of a protein tyrosine kinase or a protein tyrosine phosphatase in the T cell. Inhibition of a T cell response in accordance with the disclosed methods is useful therapeutically in situations where it is desirable to inhibit an immune response to an antigen(s), for example in organ or bone marrow transplantation and autoimmune diseases. Alternatively, stimulation of a T cell response in accordance with the disclosed methods is useful therapeutically to enhance an immune response to an antigen(s), for example to stimulate an anti-tumor response in a subject with a tumor, to stimulate a response against a pathogenic agent or increase the efficacy of vaccination. Novel screening assays for identifying inhibitors or activators of phosphatidylinositol 3-kinase, which can be used to inhibit or stimulate a T cell response, are also disclosed.</PTEXT>
Patent CA-2001775-C (CA)
Inventor: TOKO YOSHIO
IPC: H04B7/26
Filed: 1989-10-30
Granted: 1994-03-08
Abstract: A mobile telephone system having a controlling portion which sends an intermittent signal to a power switch during a standby state so that power is turned on during a period when a necessary signal portion of a control signal derived from a signal receiving portion is input, the power switch being turned off during a period when an unnecessary signal portion of the control signal is input, and thereby, the components of the signal receiving portion having short rise times, i.e., time intervals between turning on of the power source and start of operation, are supplied with intermittent power to reduce power consumption.
Patent CA-2008440-C (CA)
Title: Novel breathable disposable diapers
Inventor: VITARIS RONALD F
IPC: A61F13/56
Filed: 1990-01-24
Granted: 1999-09-14
Abstract: Novel breathable disposable diapers of per se known configuration comprising a back sheet having a crotch portion and corner portions or wings adapted for engaging the waist and stomach of the wearer, the corner portions being both air-and liquid-permeable, the crotch portion of the back sheet comprising a a liquid-impermeable sheet material carrying an absorbent pad for receiving and retaining body waste materials with the side edges of the sheet material extending around and over the side edges of the pad, whereby to provide a barrier preventing the waste material from escaping through the back of the diaper or through the side edges of the pad.      Preferably, a permeable cover or front sheet, is also provided, the absorbent pad in the crotch portion being sandwiched between the cover and liquid-impermeable sheets.
Patent CA-2010052-C (CA)
Title: Automatic three-dimensional photo printer to align the key subject image
Inventor: LAM NICHOLAS L-Y
IPC: G03B35/24
Filed: 1990-02-14
Granted: 1995-05-02
Abstract: A method and a printer for printing an image array on the photosensitive surface of lenticular print film from a set of 2D views which involves moving the negative carrier on the printer in accordance with the equation   where S is the distance between key subject images of adjacent 2D views, T is the separation between adjacent camera lenses, F is the back focal length of the camera lens, K is the distance between the lens of the camera and the key subject K' and moving the negative by the appropriate S value between printing of adjacent 2D views.     A fully automatic and semi-automatic printer is provided.
Patent CA-2011128-C (CA)
Title: Shredder
Inventor: RATERMAN DONALD E
IPC: B02C18/06
Filed: 1990-02-28
Granted: 1994-04-05
Abstract: ABSTRACT OF THE DISCLOSURE    A shredding device uses a plurality of interleaving, counter-rotating discs to reduce sheets of material into longitudinal strips.  One or more notches, formed in the periphery of each disc, cut the longitudinal strips into segments.  Deflectors disposed in the spaces between each disc clear unwanted material from between the discs.  When jammed, the rotation of the discs reverses, and the notches bite into the jammed material to help remove it from between the discs.
Patent CA-2017776-C (CA)
Title: Strain gange weighing device
Inventor: BIZET BRUNO
IPC: G01G21/24
Filed: 1990-05-29
Granted: 1993-12-21
Abstract: The loading cell (1) consists of a slightly flattened flexion bar (4) combined with a wide flat parallel secondary sheet (13) connecting a mobile upright (6) to a fixed upright (9). A plate (2) is firmly attached to the mobile upright (6) while a base plate (3) is firmly attached to the fixed upright (9). Strain gauges are distributed over the surface of the flexion bar (4) and are connected in a Wheatstone bridge for the measurement of the load. 
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Patent CA-2022168-C (CA)
Inventor: GRENIER MAURICE
IPC: F25J3/00
Filed: 1990-07-27
Granted: 1995-03-14
Abstract: La double colonne comporte un appareil de vaporisation d'oxygène et de condensation d'azote qui comprend d'une part un échangeur de chaleur principal à ruissellement d'oxygène partiellement immergé lors des arrêts de l'installation, et d'autre part un échangeur de chaleur auxiliaire qui assure seul la vaporisation de liquide lors du redémarrage de l'installation.
Patent CA-2022393-C (CA)
Title: Ethoxylated n,n-bis-phosphonomethyl 2-(hydroxy)ethylamine n-oxides and water-soluble salts thereof
Inventor: HWA CHIH MING
IPC: C02F5/10
Filed: 1990-07-31
Granted: 2000-09-05
Abstract: This invention relates to novel organic phosphonate compounds, and more particularly to ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy) ethylamine N-oxides and their water soluble salts. These novel organic phosphonates are useful as water treatment agents which can be employed for the control of scale and/or corrosion.
Patent CA-2028588-C (CA)
Title: Fixed bed fischer-tropsch catalyst and manufacture thereof
Inventor: OLIVIER ANTHONY J
IPC: C01B/
Filed: 1990-10-25
Granted: 1999-03-02
Abstract: The disclosure describes a catalyst composition for use in a Fischer-Tropsch process, in which the composition comprises activated  carbon. It  has been found that activated carbon of which at least 90  percent of  the  particles is smaller than 45 micron or of which at  least 90 percent  of the particles fall within the range of 850 micron to  1200 micron   yields  particularly  good  results.   The  disclosure   also describes a method of manufacturing an iron-based catalyst composition for  use  in a Fischer-Tropsch process, in which activated  carbon is added  to  any of the catalyst pre ursors, at any stage prior  to  the extrusion stage.
Patent CA-2030568-C (CA)
Title: Method for the regenerative treatment of mainly clay-bound foundry old sand
Inventor: SATMER FRANZ
IPC: B22C5/04
Filed: 1990-11-22
Granted: 2000-10-10
Abstract: A method for regenerating foundry old sand is proposed, by which method combined impact and shearing stress of the sand grains occurs with simultaneous dust removal. The dust removed by suction contains nonburned bentonite and carbon parts which can be re-used in the same way as the regenerated material or core sand. Environmental pollution and quantities for dumping are drastically reduced.
Patent CA-2032615-C (CA)
Title: Method and appparatus for the billing of value-added communication calls
Inventor: BENYACAR IRVING
IPC: H04M15/00
Filed: 1990-12-18
Granted: 1994-08-30
Abstract: METHOD AND APPARATUS FOR THE BILLING OF VALUE-ADDED             COMMUNICATION CALLS Abstract A call billing method and apparatus specifies, on a call-by-call basis, the calling charges incurred by a caller during a call to a sponsor-provided value-added service. The method provides the sponsor real time access to rate tables to specify call billing parameters needed to rate calls made to a sponsor number. A billingnumber is determined and validated and used to identify the party to receive a billing record for the call. A separate billing record is created for each call to the sponsor's number which includes sponsor-specified charges determined using the call billing parameters. Another feature enables the caller or called party to provide call billing parameters for billing and identification purposes.
Patent CA-2035318-C (CA)
Title: Mobile facsimile telecommunications system capable of automatically off-hooking a facsimile device
Inventor: TAKAHASHI CHUSEI
IPC: H04N1/327
Filed: 1991-01-30
Granted: 2001-09-11
Abstract: A mobile facsimile telecommunications system utilizes an automobile telephone system as a transmission path. In one aspect, this system utilizes an adaptor which can place the facsimile device under an off-hook condition without using an ordinary telephone set additionarily provided to compensate for defects of a portable-type facsimile device having no dialing function, thereby achieving its simplification of system construction as well as the reduction of telephone charges. In another aspect, this system utilizes an automatic response function, a polling transmission function using a given default value, and an automatic off-hook function specified by an operator after conversation, thereby rendering the manipulation for facsimile communication simple.
Patent CA-2037941-C (CA)
Inventor: SHEU SHEN SIMON
IPC: B23K15/00
Filed: 1991-03-11
Granted: 1996-04-09
Abstract: A method of rolling metal in a plurality of rolling stands with each of the stands having two or more rolls.  The method includes first polishing the surfaces of the rolls to an average roughness of less than 0.3 microns, after which the roll surfaces are textured with a plurality of minute micron size craters.  The roll surface and craters are then coated with a dense, hard material before the rolls are lubricated and used to reduce the thickness of the metal in the stands.  To this end, the metal is directed through the stands, the craters being capable of retaining and carrying lubricant into the bites of the rolls without substantial adherence of metal to the roll surfaces and without substantial generation of wear debris on the surfaces of the rolls and rolled material.
Patent CA-2042460-C (CA)
Title: Bitumen blends
Inventor: FISHER ROBERT G
IPC: E01C7/22
Filed: 1991-05-13
Granted: 2002-11-12
Abstract: Paving composition comprising a blend of specified bitumen and high vinyl butadiene, substantially free of added sulphur or peroxide, with elastic recovery greater than 50%.
Patent CA-2042836-C (CA)
Title: Process for the continuous bulk production of acrylic polymers
Inventor: RELVINI PASQUALE
IPC: C08F20/12
Filed: 1991-05-17
Granted: 2002-08-27
Abstract: A process for the continuous bulk production of acrylic polymers which comprises: a. continuously feeding a polymerization reactor with a re-action mixture containing at least a polymerization ad-juvant selected from solvents of the acrylic polymer, preferably from the C1-C10 alkyl esters of organic acids R-COOH, wherein radical R represents a hydrogen atom or an alkyl radical containing from 1 to 6 carbon atoms, b. partially converting the_reaction mixture at high tem-perature, and C. devolatilizing the partially converted polymer at high temperature and reduced pressure.
Patent CA-2046308-C (CA)
Inventor: SIMON JAIME
IPC: A61P19/02
Filed: 1990-12-18
Granted: 2000-11-28
Abstract: Radiolabeled colloid compositions, a process for their preparation, and their use in the treatment of rheumatoid arthritis are disclosed. A radionuclide of Sm-135, Ho-166, In-155m, Y-90, Gd-159, La-140, Lu 177 or Yb-175 is sorbed to a previously prepared iron-hydroxide colloid. The radiolabeled colloid compositions are comprised of spherical aggregations containing greater than 50 % of the radioactive metal in iron-hydroxide particles.
Patent CA-2047599-C (CA)
Title: A static laminar mixing device
Inventor: FLEISCHLI MARKUS
IPC: B29B7/32
Filed: 1991-07-23
Granted: 2003-09-23
Abstract: The static laminar mixing device for mixing media of widely different viscosities has two mixers of different cross-sections arranged one after the other with the cross-section of the first mixer being smaller than the second mixer. An admixing device for metering additive of lower viscosity than the medium of the main flow is also provided. This admixing device has a plate which defines a converging orifice for passage of the main flow and additive therethrough into the first mixer while a nozzle is aligned with the orifice for adding the additive flow.
Patent CA-2051757-C (CA)
Title: Self-regulating heater utilizing ferrite-type body
Inventor: MCGAFFIGAN THOMAS H
IPC: H05B6/14
Filed: 1991-09-18
Granted: 2001-02-20
Abstract: A self-regulating heater is provided by placing a ferrite-type body member (16), which is highly lossy when exposed to a high frequency alternating magnetic field and has a predetermined curie temperature, on or around a central conductor (14) which is connected or is adapted to be connected to a power source (17) which provides high frequency alternating current to the conductor. The current passing through the central conductor (14) produces a magnetic field around the conductor, which causes the ferrite-type body to be heated by internal loses to its Curie temperature. The heater self-regulates at the Curie temperature of the ferrite-type body. The power source (17) is preferably a constant current, impedance matched power source. The ferrite-type body member can be ferromagnetic or ferrimagnetic. The ferrite-type body is preferably ferrimagnetic, such as ferrite beads, rings, and the like, which heat by hysteresis losses.
Patent CA-2052659-C (CA)
Title: Process for the production of pig iron and sponge iron
Inventor: KEPPLINGER LEOPOLD-WERNER
IPC: C21B13/14
Filed: 1991-10-02
Granted: 2001-04-17
Abstract: A process for producing pig iron is described, which contains a reducing shaft furnace 1 and a melting gasifier 2. The sponge iron produced from iron ores in the reducing shaft furnace is supplied to the melting gasifier and converted there into a pig iron melt. The gas produced in the melting gasifier is supplied directly via a line 4 as reducing gas to the reducing shaft furnace. The blast furnace gas passing out of the reducing shaft furnace, after traversing a CO2 scrubber 6, is at least partly heated is a heat exchanger to 200 to 500°C and passed to a partial combustion plant 13 where, accompanied by the addition of ozygen, the gas is heated to the necessary reducing temperature.
Patent CA-2065296-C (CA)
Title: Remote end detection
Inventor: WARREN JOHN ANDREW
IPC: G01J1/02
Filed: 1990-09-04
Granted: 1997-07-08
Abstract: An apparatus and method for determining passage along an installation route of an advancing end of an optical fibre.  A detector at the installation end detects when light is transmitted back along the fibre from a source at a predetermined location. The source may be a primary source or comprise a means for coupling to a light carrying fibre.
Patent CA-2066375-C (CA)
Title: Rear suspension
Inventor: VELAZQUEZ ALFONSO BRIHUEGA
IPC: B60G9/00
Filed: 1992-04-16
Granted: 1995-10-03
Abstract: A rear suspension of square rubber torque spring type for vehicles, particularly buses, whose construction and complementary components give an increase in load capacity, reduction of maintenance time and improved safety and comfort conditions in operation.  The rear suspension includes an upper support and a lower support formed similarly and designed to support the spring by clamping, the upper and lower supports being united by clamps on the ends of which a lower mounting seat is introduced, allowing such clamps to fasten the spring and the supports with the rear axle of the vehicle using hexagonal self-locking nuts.  The assembly is joined to the body by suspension arms and flexible links.  The rear suspension includes adjustment levers connected without welding to hexagonal blocks on each end of the shaft of the square spring.  Lugs are also provided for the suspension system on the upper support to permit for shock absorber mounting.
Patent CA-2071543-C (CA)
Title: Recombinant dna method and vectors for use therein
Inventor: BEBBINGTON CHRISTOPHER ROBERT
IPC: C12N15/09
Filed: 1990-10-25
Granted: 2005-02-22
Abstract: There is described a method, for obtaining a eukaryotic cell containing in its DNA multiple copies of a glutamine synthetase (GS) gene, comprising: transforming a eukaryotic glutamine auxotroph with a GS gene; selecting transformant cells containing the GS gene; and culturing the selected transforant cells in a medium which lacks glutamine or in which the amount of glutamine is progressively depleted, the GS gene being of a character such that, or the conditions employed during the culturing step being such that, the GS gene is so weakly transcribed that cells in which the GS gene has been amplified are selected. Also described are DNA vectors for use in the aforementioned method.
Patent CA-2072172-C (CA)
Title: Technique for voice-based security systems
Inventor: MCNAIR BRUCE E
IPC: G10L17/00
Filed: 1992-06-23
Granted: 1996-04-30
Abstract: A voice-based security system requires that a series of utterances to be uttered by the requester contain at least one repeated utterance. The system compares a representation of each instance of the repeated utterance as uttered by the requester to both a prestored template for the utterance and to each representation of the other instances of the utterance as uttered by said requester. The requester is authenticated only if each representation of the repeated utterance as uttered by said requester matches the prestored template and the representations of the repeatedutterance as uttered by said requester do not match each other to such a high degree that they are deemed to have been mechanically generated.
Patent CA-2073353-C (CA)
Title: Glycerol-derived non ionic amphiphilic compounds, a process for their preparation, corresponding intermediary compounds and compositions containing said compounds
Inventor: ZYSMAN ALEXANDRE
IPC: A61K8/00
Filed: 1991-11-13
Granted: 2003-10-28
Abstract: ilic, glycerol-derived compounds having formula (I), where R is a radical selected from the group consisting of C4-28 branched or linear alkenyl or alkyl radicals or mixtures thereof, or is a -CH2A grouping in which A is -OR', -SR, (II) where R' is a saturated or unsaturated hydrocarbonated radical and n represents an average statistical value n greater than 1 and equal to or less than 6; and, when R' is a -CH2A radical, n is also 2. These compounds are surface-active agents and some may form vesicles.
Patent CA-2073918-C (CA)
Title: Method and apparatus for updating coefficients in a complex adaptive equalizer
Inventor: PAIK WOO H
IPC: H04B3/06
Filed: 1992-07-15
Granted: 2000-12-19
Abstract: Convergence of a complex adaptive equalizer used in digital communications is substantially improved by updating all coefficients of the equalizer during each filter clock cycle. Complex signal data is passed through a plurality of successive delay stages to provide N sets of delayed complex signal data. The product of each set and a complex error signal is obtained. Each product is concurrently updated with previous product data for the set to provide N sets of updated complex coefficients for selective input to equalizer filters. In an illustrated embodiment, the updated coefficients are truncated and their gain is adjusted prior to input to the filters. The updated coefficients can be multiplexed to provide a clocked stream of coefficient sets for input to the equalizer filters. A VLSI implementation of the equalizer is also disclosed.
Patent CA-2074830-C (CA)
Inventor: BISCHOF DANIEL F
IPC: A61K35/14
Filed: 1991-12-20
Granted: 1999-03-02
Abstract: Systems and methods for removing a contaminant from a fluid like blood, regardless of whether the contaminant is carried free within the fluid or entrained within cellular matter carried within the fluid. The systems and methods rely upon photodynamic processes to remove free contaminants from the fluid. The systems and methods rely upon separation processes to remove the cellular matter and, with it, the contaminants it entrains from the fluid. The system (10) includes a treatment device (12) that receives the fluid from a source container (14) and conveys the fluid after treatment to a collection container (16). Treatment device (12) includes housing (18) that encloses an interior chamber (20) which has an inlet (22) for receiving a blood suspension from source container (14) and an outlet (24) for discharging the blood suspension. Device (12) also comprises first element (26) for separating cellular components from the blood, and second element (28) which employs photodynamic therapy to remove the free biological contaminants.
Patent CA-2083227-C (CA)
Inventor: CHASE RUSSELL C
IPC: B25B1/24
Filed: 1992-11-18
Granted: 1996-10-01
Abstract: A machine tool vice is provided with a set of soft jaws. The soft jaws attach inside and against two master jaws.  Both jaws of the vice are equipped with an alignment mechanism to position the soft jaws to assure repositioning.  Each jaw is provided with a lengthwise slot which provides a registration face at right angles to an upright registration face at the master jaw.  The soft jaw is provided with a bracket that  registers  on   the two faces just mentioned to obtain  precise  repositioning in two  dimensions. Positioning in the third dimension is accomplished by use of a registration pin joining the soft jaw to the master jaw, and a tapered set screw threading into a chamfered opening is used along with the pin to accomplish clamping, thereby assuring complete registration of the bracket holding the soft jaw  in the vice.  The soft jaws can be mounted, removed and later returned with assurances that the soft jaws are held at a fixed location with respect to the cutter and spindle supporting the cutter.  This overcomes errors in and assures parallelism between the cutter and the work piece ultimately supported in the soft jaws.